Code 186

[Newbie208]

I've picked up a really clean 93 explorer, seems to be running great no major problems to be know but the check engine light comes and goes depending on the speed. So I ran the test and got the code 186 don't know what to do from here, read the definition of it and all but I'm lost

 

[Centaurious]

Check the intake tube for leaks. It runs between the airbox/MAF and the throttle body. The rubber ends can crack and leak over time.

 

[Newbie208]

Thanks for the input but I checked over the tubing and it is in great condition, any other suggestions?